Canadian perspectives on air pollution / J. Hilborn, M. Still. : En1-11/90-1E-PDF

"In the final decade of the 20th century, the global community continues to grapple with an unprecedented array of air quality and atmospheric pollution problems. Not only is local air quality deteriorating as the world’s nations pollute the air, but there is also a growing body of evidence to suggest that the composition of the whole atmosphere is changing rapidly as pollutant levels build. In this State of the Environment report, we discuss the causes of some of these local and atmospheric air pollution problems, as well as their general effects on both human health and the environment"--Summary.

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